Container with double-layer flat cover

Abstract

The double-layer flat cover container comprises a hose, an outer cover, an inner cover and a one-way valve, the hose comprises a hose body and a hose head, a limiting plate is fixedly connected in the hose head, a liquid outlet hole is formed in the middle of the limiting plate, the one-way valve comprises a valve body pipe and a movable plate, a liquid outlet pipe is arranged in the valve body pipe, and the movable plate is arranged in the valve body pipe. The inner cover covers the liquid outlet pipe and is in threaded connection with the pipe head, and the outer cover is buckled with the inner cover. According to the double-layer flat cover container, the one-way valve is designed to enable the movable plate to tightly cover the liquid outlet hole, liquid is discharged only when internal pressure is enough, liquid backflow is eradicated, and product pollution is effectively avoided. The valve body pipe is matched with the pipe head and the liquid outlet pipe through the sealing rings and the sealing grooves, the packing piece is arranged on the inner cover, the outer cover is buckled with the inner cover, the sealing performance is greatly improved through a multi-layer sealing structure, and liquid leakage during transportation and storage is prevented. The inner cover is in threaded connection with the pipe head, the outer cover is buckled with the inner cover, operation is easy, the liquid outlet pipe limiting ring facilitates component assembly, and use convenience is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of container technology, specifically relating to a double-layer flat-top container. Background Technology

[0002] In the field of container technology, especially for containers used to hold various liquid products (such as cosmetics, pharmaceuticals, and food sauces), there are still many problems that urgently need to be solved. Traditional flexible tube containers often have a relatively simple design in terms of liquid outlet structure, making it easy for liquid to flow back. This not only leads to contamination of the liquid inside the container but may also affect the product's shelf life and effectiveness. For example, after use, due to pressure changes within the tube, residual liquid may flow back into the tube from the outlet, allowing external impurities to enter and thus reducing product quality.

[0003] Meanwhile, the sealing performance of existing containers often falls short of ideal standards. Ordinary inner and outer cap structures cannot effectively prevent liquid leakage, especially during transportation or long-term storage when containers are subjected to pressure or temperature changes, exacerbating the leakage problem. This not only results in product waste but may also pollute the surrounding environment and cause significant inconvenience to users. Furthermore, some containers are not convenient enough to open and close, failing to meet consumers' demands for quick and hygienic product use. Utility Model Content

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a double-layer flat-cap container, including a hose, an outer cap, an inner cap, and a one-way valve. The hose includes a tube body and a tube head. A limiting plate is fixedly connected inside the tube head. The middle of the limiting plate is provided with a liquid outlet hole communicating with the inside of the tube body. The one-way valve includes a valve body tube and a movable plate. The valve body tube is located inside the tube head and is interference-fitted with the tube head. The movable plate is located on the limiting plate and covers the liquid outlet hole. One side of the movable plate is connected to the valve body tube through an elastic connecting part. A liquid outlet tube is provided inside the valve body tube. The lower end of the liquid outlet tube is interference-fitted with the valve body tube. The upper end of the liquid outlet tube extends out of the valve body tube and is provided with a liquid outlet. The inner cap covers the liquid outlet tube and is threadedly connected to the tube head. The inner cap is located inside the outer cap, and the outer cap and the inner cap are fastened together.

[0005] As a preferred embodiment of the above technical solution, an outer sealing ring is fixedly connected to the outer side of the valve body tube, an outer annular sealing groove is provided on the inner side of the tube head, the outer sealing ring is located in the outer annular sealing groove, an inner annular sealing groove is provided on the inner side of the valve body tube, and an inner sealing ring is fixedly connected to the outer side of the liquid outlet tube, the inner sealing ring is located in the inner annular sealing groove.

[0006] As a preferred embodiment of the above technical solution, a limit ring is fixedly connected to the outer side of the middle part of the outlet pipe.

[0007] As a preferred embodiment of the above technical solution, the inner cover is provided with a clamping plate inside, and the inner side of the inner cover is provided with a mounting groove, with the clamping plate located around the mounting groove.

[0008] As a preferred embodiment of the above technical solution, the lower outer side of the inner cover is provided with a surrounding plate with an elliptical cross-section, the upper end of the surrounding plate has a guide surface, the lower end of the surrounding plate is fixedly connected to the lower end of the inner cover, the outer cover is fastened to the surrounding plate, and the cross-section of the outer cover is elliptical.

[0009] The beneficial effects of this utility model are as follows: The double-layer flat-cap container of this utility model has significant technical advantages. The one-way valve design ensures that the movable plate tightly covers the liquid outlet, discharging liquid only when the internal pressure is sufficient, preventing liquid backflow, effectively avoiding product contamination, and extending shelf life. The valve body tube, pipe head, and liquid outlet tube are connected by a sealing ring and a sealing groove. The inner cover has a clamping plate, and the outer cover is snapped onto the inner cover. This multi-layer sealing structure greatly improves sealing performance and prevents liquid leakage during transportation and storage. The inner cover is threaded to the pipe head, and the outer cover is snapped onto the inner cover, simplifying operation. The liquid outlet tube limiting ring facilitates component assembly, greatly improving ease of use and providing users with a good experience. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the cross-sectional structure of this utility model;

[0011] Figure 2 This is a three-dimensional structural diagram of the present invention. Detailed Implementation

[0012] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0013] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] like Figure 1-2 As shown, the double-layered flat-cap container includes a flexible tube 1, an outer cap 2, an inner cap 3, and a one-way valve 4. The flexible tube 1 includes a tube body and a tube head 6. A limiting plate 5 is fixedly connected inside the tube head 6. The limiting plate 5 has a liquid outlet 7 in the middle that connects to the inside of the tube body. The one-way valve 4 includes a valve body tube 8 and a movable plate 9. The valve body tube 8 is located inside the tube head 6 and is press-fitted with the tube head 6. The movable plate 9 is located on the limiting plate 5 and covers the liquid outlet 7. One side of the movable plate 9 is connected to the valve body tube 8 through an elastic connecting part 10. The valve body tube 8 has a liquid outlet tube 11 inside. The lower end of the liquid outlet tube 11 is press-fitted with the valve body tube 8, and the upper end of the liquid outlet tube 11 extends out of the valve body tube 8 and has a liquid outlet 12. The inner cap 3 covers the liquid outlet tube 11 and is threadedly connected to the tube head 6. The inner cap 3 is located inside the outer cap 2, and the outer cap 2 and the inner cap 3 are fastened together. When the outer cap 2 is rotated, the inner cap 3 is rotated together. When the flexible hose 1 is squeezed, the movable plate 9 flips at a certain angle under pressure, and the object inside the hose 1 passes through the liquid outlet 7, the liquid outlet tube 11, and the liquid outlet 12 in sequence and is squeezed out for use. After the hose 1 is released, a certain negative pressure is formed inside the hose 1. With the restoring force of the elastic connection part 10, the movable plate 9 covers the liquid outlet 7 to prevent the object inside the hose 1 from leaking out.

[0016] Furthermore, an outer sealing ring 13 is fixedly connected to the outer side of the valve body tube 8, and an outer annular sealing groove 14 is provided on the inner side of the tube head 6, with the outer sealing ring 13 located in the outer annular sealing groove 14. An inner annular sealing groove 15 is provided on the inner side of the valve body tube 8, and an inner sealing ring 16 is fixedly connected to the outer side of the outlet tube 11, with the inner sealing ring 16 located in the inner annular sealing groove 15. The cooperation between the outer sealing ring 13 and the outer annular sealing groove 14 improves the sealing performance of the connection between the valve body tube 8 and the tube head 6, preventing the valve body tube 8 from detaching from the tube head 6. The cooperation between the inner sealing ring 16 and the inner annular sealing groove 15 improves the sealing performance of the connection between the outlet tube 11 and the valve body tube 8, preventing the outlet tube 11 from detaching from the valve body tube 8.

[0017] Furthermore, a limiting ring 17 is fixedly connected to the outer side of the middle part of the outlet pipe 11. The limiting ring 17 restricts the position of the outlet pipe 11 in the valve body pipe 8, so that a certain distance is maintained between the movable plate 9 and the lower end of the outlet pipe 11, and the movable plate 9 has a certain space for rotation.

[0018] Furthermore, the inner cover 3 is provided with a clamping plate 18 inside, and an installation groove 19 is provided on the inner side of the inner cover 3. The clamping plate 18 is located around the installation groove 19. The clamping plate 18 blocks the liquid outlet 12, further improving the sealing of the container. When the outer cover 2 and the inner cover 3 are unscrewed, the clamping plate 18 can remain inside the inner cover 3 and will not fall out.

[0019] Furthermore, the lower outer side of the inner cover 3 is provided with a surrounding plate 20 with an elliptical cross-section. The upper end of the surrounding plate 20 has a guide surface 21, and the lower end of the surrounding plate 20 is fixedly connected to the lower end of the inner cover 3. The outer cover 2 is fastened to the surrounding plate 20, and the cross-section of the outer cover 2 is elliptical. The elliptical cross-section of the outer cover 2 makes the outer cover 2 a flat cover, which is convenient for gripping the outer cover 2 to rotate it, and the outer cover 2 has a more aesthetically pleasing appearance.

[0020] It is worth mentioning that the technical features such as the hose involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial arrangement of these technical features can be adopted by conventional choices in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not be further elaborated in detail.

[0021] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experimentation on the basis of the prior art should be within the scope of protection defined by the claims.

Claims

1. A double-layered flat-top container, characterized in that, The device includes a hose (1), an outer cover (2), an inner cover (3), and a one-way valve (4). The hose (1) includes a tube body and a tube head (6). A limiting plate (5) is fixedly connected inside the tube head (6). The limiting plate (5) has an outlet hole (7) in the middle that connects to the inside of the tube body. The one-way valve (4) includes a valve body tube (8) and a movable plate (9). The valve body tube (8) is located inside the tube head (6) and is press-fitted with the tube head (6). The movable plate (9) is located on the limiting plate (5) and covers the tube head (6). The valve body tube (8) is connected to the valve body tube (8) via an elastic connecting part (10) on one side of the valve body tube (8). The valve body tube (8) is provided with a liquid outlet tube (11). The lower end of the liquid outlet tube (11) is press-fitted with the valve body tube (8). The upper end of the liquid outlet tube (11) extends out of the valve body tube (8) and is provided with a liquid outlet (12). The inner cover (3) covers the liquid outlet tube (11) and is threadedly connected to the tube head (6). The inner cover (3) is located inside the outer cover (2). The outer cover (2) and the inner cover (3) are fastened together.

2. The double-layer flat-top container as described in claim 1, characterized in that, An outer sealing ring (13) is fixedly connected to the outside of the valve body tube (8), and an outer annular sealing groove (14) is provided on the inside of the tube head (6). The outer sealing ring (13) is located in the outer annular sealing groove (14). An inner annular sealing groove (15) is provided on the inside of the valve body tube (8), and an inner sealing ring (16) is fixedly connected to the outside of the liquid outlet tube (11). The inner sealing ring (16) is located in the inner annular sealing groove (15).

3. The double-layer flat-top container as described in claim 2, characterized in that, A limiting ring (17) is fixedly connected to the outer side of the middle part of the liquid outlet pipe (11).

4. The double-layer flat-top container as described in claim 3, characterized in that, The inner cover (3) is provided with a clamping piece (18) inside, and the inner side of the inner cover (3) is provided with a mounting groove (19), with the clamping piece (18) located around the mounting groove (19).

5. The double-layer flat-top container as described in claim 1, characterized in that, The lower outer side of the inner cover (3) is provided with a elliptical cross-section of a surrounding plate (20). The upper end of the surrounding plate (20) has a guide surface (21). The lower end of the surrounding plate (20) is fixedly connected to the lower end of the inner cover (3). The outer cover (2) is fastened to the surrounding plate (20). The cross-section of the outer cover (2) is elliptical.

Images